diff --git a/package-lock.json b/package-lock.json
index 025b884..4060b73 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -32,7 +32,6 @@
         "lodash": "^4.17.21",
         "moment": "^2.29.4",
         "prop-types": "15.8.1",
-        "query-string": "7.1.3",
         "react": "^18.3.1",
         "react-dom": "^18.3.1",
         "react-helmet": "^6.1.0",
@@ -16469,24 +16468,6 @@
         "url": "https://github.com/sponsors/ljharb"
       }
     },
-    "node_modules/query-string": {
-      "version": "7.1.3",
-      "resolved": "https://registry.npmjs.org/query-string/-/query-string-7.1.3.tgz",
-      "integrity": "sha512-hh2WYhq4fi8+b+/2Kg9CEge4fDPvHS534aOOvOZeQ3+Vf2mCFsaFBYj0i+iXcAq6I9Vzp5fjMFBlONvayDC1qg==",
-      "license": "MIT",
-      "dependencies": {
-        "decode-uri-component": "^0.2.2",
-        "filter-obj": "^1.1.0",
-        "split-on-first": "^1.0.0",
-        "strict-uri-encode": "^2.0.0"
-      },
-      "engines": {
-        "node": ">=6"
-      },
-      "funding": {
-        "url": "https://github.com/sponsors/sindresorhus"
-      }
-    },
     "node_modules/querystringify": {
       "version": "2.2.0",
       "resolved": "https://registry.npmjs.org/querystringify/-/querystringify-2.2.0.tgz",
diff --git a/package.json b/package.json
index b54cdc5..f41a902 100755
--- a/package.json
+++ b/package.json
@@ -52,7 +52,6 @@
     "lodash": "^4.17.21",
     "moment": "^2.29.4",
     "prop-types": "15.8.1",
-    "query-string": "7.1.3",
     "react": "^18.3.1",
     "react-dom": "^18.3.1",
     "react-helmet": "^6.1.0",
diff --git a/src/containers/CoursesPanel/hooks.js b/src/containers/CoursesPanel/hooks.js
index dcc5a60..2cdeeb3 100644
--- a/src/containers/CoursesPanel/hooks.js
+++ b/src/containers/CoursesPanel/hooks.js
@@ -1,7 +1,5 @@
 import React from 'react';
 
-import queryString from 'query-string';
-
 import { ListPageSize, SortKeys } from 'data/constants/app';
 import { reduxHooks } from 'hooks';
 import { StrictDict } from 'utils';
@@ -27,12 +25,13 @@ export const useCourseListData = () => {
 
   const [sortBy, setSortBy] = module.state.sortBy(SortKeys.enrolled);
 
-  const querySearch = queryString.parse(window.location.search, { parseNumbers: true });
+  const querySearch = new URLSearchParams(window.location.search);
+  const disablePagination = querySearch.get('disable_pagination');
 
   const { numPages, visibleList } = reduxHooks.useCurrentCourseList({
     sortBy,
     filters,
-    pageSize: querySearch?.disable_pagination === 1 ? 0 : ListPageSize,
+    pageSize: Number(disablePagination) === 1 ? 0 : ListPageSize,
   });
 
   const handleRemoveFilter = (filter) => () => removeFilter(filter);
diff --git a/src/containers/CoursesPanel/hooks.test.js b/src/containers/CoursesPanel/hooks.test.js
index 86789d1..64f608c 100644
--- a/src/containers/CoursesPanel/hooks.test.js
+++ b/src/containers/CoursesPanel/hooks.test.js
@@ -1,5 +1,3 @@
-import queryString from 'query-string';
-
 import { MockUseState } from 'testUtils';
 import { reduxHooks } from 'hooks';
 import { ListPageSize, SortKeys } from 'data/constants/app';
@@ -15,8 +13,10 @@ jest.mock('hooks', () => ({
   },
 }));
 
-jest.mock('query-string', () => ({
-  parse: jest.fn(() => ({})),
+const mockGet = jest.fn(() => ({}));
+
+global.URLSearchParams = jest.fn().mockImplementation(() => ({
+  get: mockGet,
 }));
 
 const state = new MockUseState(hooks);
@@ -67,7 +67,7 @@ describe('CourseList hooks', () => {
       it('loads current course list with page size 0 if/when there is query param disable_pagination=1', () => {
         state.mock();
         state.mockVal(state.keys.sortBy, testSortBy);
-        queryString.parse.mockReturnValueOnce({ disable_pagination: 1 });
+        mockGet.mockReturnValueOnce('1');
         out = hooks.useCourseListData();
         expect(reduxHooks.useCurrentCourseList).toHaveBeenCalledWith({
           sortBy: testSortBy,
diff --git a/src/data/services/lms/utils.js b/src/data/services/lms/utils.js
index 65a5ff6..f1c802d 100644
--- a/src/data/services/lms/utils.js
+++ b/src/data/services/lms/utils.js
@@ -1,6 +1,34 @@
-import queryString from 'query-string';
 import { getAuthenticatedHttpClient } from '@edx/frontend-platform/auth';
 
+/**
+ * stringify(query, existingQuery)
+ * simple wrapper to convert an object to a query string
+ * @param {object} query - object to convert
+ * @param {string} existingQuery - existing query string
+ * @returns {string} - query string
+ */
+
+export const stringify = (query, existingQuery = '') => {
+  const searchParams = new URLSearchParams(existingQuery);
+
+  Object.entries(query).forEach(([key, value]) => {
+    if (value === undefined || value === null || value === '') {
+      searchParams.delete(key);
+    } else if (Array.isArray(value)) {
+      searchParams.delete(key);
+      value.forEach((val) => {
+        if (val !== undefined && val !== null && val !== '') {
+          searchParams.append(key, val);
+        }
+      });
+    } else {
+      searchParams.set(key, value);
+    }
+  });
+
+  return searchParams.toString();
+};
+
 /**
  * get(url)
  * simple wrapper providing an authenticated Http client get action
@@ -10,21 +38,23 @@ export const get = (...args) => getAuthenticatedHttpClient().get(...args);
 /**
  * post(url, data)
  * simple wrapper providing an authenticated Http client post action
- * queryString.stringify is used to convert the object to query string with = and &
+ * stringify is used to convert the object to query string with = and &
  * @param {string} url - target url
  * @param {object|string} body - post payload
  */
-export const post = (url, body) => getAuthenticatedHttpClient().post(url, queryString.stringify(body));
+export const post = (url, body) => getAuthenticatedHttpClient().post(url, stringify(body));
 
 export const client = getAuthenticatedHttpClient;
 
 /**
  * stringifyUrl(url, query)
- * simple wrapper around queryString.stringifyUrl that sets skip behavior
+ * simple wrapper to convert a url and query object to a full url
  * @param {string} url - base url string
  * @param {object} query - query parameters
+ * @returns {string} - full url
  */
-export const stringifyUrl = (url, query) => queryString.stringifyUrl(
-  { url, query },
-  { skipNull: true, skipEmptyString: true },
-);
+export const stringifyUrl = (url, query) => {
+  const [baseUrl, existingQuery = ''] = url.split('?');
+  const queryString = stringify(query, existingQuery);
+  return queryString ? `${baseUrl}?${queryString}` : baseUrl;
+};
diff --git a/src/data/services/lms/utils.test.js b/src/data/services/lms/utils.test.js
index fbb0a93..7d78a07 100644
--- a/src/data/services/lms/utils.test.js
+++ b/src/data/services/lms/utils.test.js
@@ -1,11 +1,6 @@
-import queryString from 'query-string';
 import { getAuthenticatedHttpClient } from '@edx/frontend-platform/auth';
 import * as utils from './utils';
 
-jest.mock('query-string', () => ({
-  stringifyUrl: jest.fn((url, options) => ({ url, options })),
-  stringify: jest.fn((data) => data),
-}));
 jest.mock('@edx/frontend-platform/auth', () => ({
   getAuthenticatedHttpClient: jest.fn(),
 }));
@@ -20,28 +15,25 @@ describe('lms service utils', () => {
     });
   });
   describe('post', () => {
-    it('forwards arguments to authenticatedHttpClient().post', () => {
+    it('forwards arguments to authenticatedHttpClient().post, removes undefined attributes and appends array values', () => {
       const post = jest.fn((...args) => ({ post: args }));
       getAuthenticatedHttpClient.mockReturnValue({ post });
       const url = 'some url';
       const body = {
         some: 'body',
-        for: 'the',
+        for: undefined,
         test: 'yay',
+        array: ['one', 'two', undefined],
       };
       const expectedUrl = utils.post(url, body);
-      expect(queryString.stringify).toHaveBeenCalledWith(body);
-      expect(expectedUrl).toEqual(post(url, body));
+      expect(expectedUrl).toEqual(post(url, 'some=body&test=yay&array=one&array=two'));
     });
   });
   describe('stringifyUrl', () => {
-    it('forwards url and query to stringifyUrl with options to skip null and ""', () => {
+    it('forwards url and query to stringifyUrl skipping null and ""', () => {
       const url = 'here.com';
       const query = { some: 'set', of: 'queryParams' };
-      const options = { skipNull: true, skipEmptyString: true };
-      expect(utils.stringifyUrl(url, query)).toEqual(
-        queryString.stringifyUrl({ url, query }, options),
-      );
+      expect(utils.stringifyUrl(url, query)).toEqual('here.com?some=set&of=queryParams');
     });
   });
 });
diff --git a/webpack.dev.config.js b/webpack.dev.config.js
index a7c11c2..b567676 100644
--- a/webpack.dev.config.js
+++ b/webpack.dev.config.js
@@ -9,7 +9,7 @@ config.resolve.modules = [
   'node_modules',
 ];
 
-config.module.rules[0].exclude = /node_modules\/(?!(query-string|split-on-first|strict-uri-encode|@edx))/;
+config.module.rules[0].exclude = /node_modules\/(?!(split-on-first|strict-uri-encode|@edx))/;
 
 config.plugins.push(
   new CopyPlugin({
diff --git a/webpack.prod.config.js b/webpack.prod.config.js
index 46c933b..9cf64fc 100644
--- a/webpack.prod.config.js
+++ b/webpack.prod.config.js
@@ -9,7 +9,7 @@ config.resolve.modules = [
   'node_modules',
 ];
 
-config.module.rules[0].exclude = /node_modules\/(?!(query-string|split-on-first|strict-uri-encode|@edx))/;
+config.module.rules[0].exclude = /node_modules\/(?!(split-on-first|strict-uri-encode|@edx))/;
 
 config.plugins.push(
   new CopyPlugin({